Arvi / Colocasia is called chepankizhangu at least out here in south TN I am not sure if this other tuber / kizhangu is a different one, there are so many of them, and there is no shortage of regional variants in the Tamil word for the exact same vegetable, household item or whatever.
On 05/08/16, 1:39 PM, "silklist on behalf of Rajesh Mehar" <silklist-bounces+suresh=hserus....@lists.hserus.net on behalf of rajeshme...@gmail.com> wrote: Koorka is called kurrukkankizhangu in Tamizh. I think this is also what's called Arbi in Hindi. Right? Seems to be a pan-Indian tuber? May have been the precursor to the potato. Would be good to know if someone has already explored this idea... > >